2.5 “B” and “F” Class Decks
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.754(18) – Recommendation on Fire Resistance Tests for “A”, “B” and “F” Class Divisions – (Adopted on 4 November 1993) - Annex - Recommendation on Fire Resistance Tests for “A”, “B” and “F” Class Divisions1 - 2 Nature of Test Specimens - 2.5 “B” and “F” Class Decks

2.5 “B” and “F” Class Decks

Parent topic: 2 Nature of Test Specimens

2.5.1 Dimensions

 The minimum overall dimensions for the test specimen are given in SOLAS Regulation II-2/3.2, but the recommended dimensions of the test specimen, including the perimeter details at all the edges, are 2,440 mm width and 3,040 mm length. When the maximum dimensions in practice are less than given above then the test specimen should be of the maximum size to be used in practice.

2.5.2 Design

 Where the construction incorporates panels, the specimen should be constructed such that at least one of the panels is of full width and this, or these, should be positioned such that both its/their longitudinal edges are jointed to an adjacent panel and are not secured to the restraint frame.

2.5.3 Description

 The applicant should provide full constructional details of the test specimen in the form of drawings (including a detailed schedule of components) and method of assembly, such that the laboratory is able to confirm agreement between the actual specimen and the drawings and specifications prior to the test. The drawings should include dimensions and details of the thicknesses of materials used in the insulation system (e.g. of any panels), the method of securing the insulation system and details of the components used for this purpose, details of joints, connections, air gaps and all other details.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.